The "One Channel 5V Relay Module" in a good package, i opened, fired up arduino, put in a protoboard, tested, works OK. Then i moved to my gardening project to replace another one, its been there for a month, and its working great! There is no con HOW TO USE IT:
Plug VCC on arduino 5v (or external 5v)
Plug GND to GND
Plug S to an Digital port,... Read more
Works out of the box with 5V microcontroller boards like the Arduino Uno. Just hook it up to Ground, 5V and a pin of your choice. Use writeDigital(HIGH) or LOW to switch the relay on or off (or rather close the circuit Common - Normally Open). The screw terminals (NO, NC, C) are not properly labeled so you will have to figure out which one is which ... Read more
Note:Stock and Availability shown on this site is for your reference only. While
we strive to provide the most accurate and timely stock and availability information,
availability information may become out of date and may change between the time
you added an item to cart and the time your order is received.
Quantities on clearance items are limited. Prices are current at time of posting. DX Reserves the right to change prices at any time without notice.